Reply by William

My grandfather was a beekeeper and made his similar to the way Cosmicsniper suggests, except he had a jig.I am sorry I don’t remember the exact details of the jig. That is one of those childhood memories buried somewhere deep in my twisted mind.He had something that lay into both miter slots. It had a wooden fence and a stop that he held the side of the box against and lower it down onto a blade that was already set at the height that he used. Then the whole contraption was on a piano hinge. Once the box was flush down on the table, he slowed swung it sideways, cutting the hollowed out area you see with the saw blade.